(motor racing) A black-and-white chequered flag which signifies the end of a race. / (motor racing) A victory in a race.

(sports) Each of the flags that denotes the corner of the field of play.

Alternative form of raise red flags

The captain of a flagship in the Royal Navy.

(nautical, Royal Navy) The rank of a flag officer. / Any of several equivalent ranks in several other naval or other military organizations.

(military, nautical) A naval officer with the rank of rear admiral or above. Such officers are entitled to fly a personal flag, especially on the flagship.

plural of flag rank

plural of flag captain

(topology) A simplicial complex where every collection of pairwise adjacent vertices spans a simplex.

(figuratively) Registration of a ship in a country chosen for its low taxes, permissive regulations, and so on.